electricity
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The movement of electrons from one atom to another along a conductor is called
what is electricity?
Which unit measures the resistance of an electric current?
What is ohm
All of the electrical appliances you use should_____ certified
What is UL?
Catalysts are substances that speed up_______ reactions
What is chemical?
For safety, use no more than_________ plug(s) in each outlet
What is one?
The unit that measures the pressure or force that pushes the electric current forward through a conductor is a(n
What is volt?
The unit that measures how much electric energy is being used in one second is a(n)
What is watt?
Invisible light is the light at either end of the_____ that is invisible to the naked eye
What is visible spectrum of light?
_______ is an extremely low level of electricity that mirrors the body’s natural electrical impulses.
What is Microcurrent ?
Electric________ refers to the flow of electricity along a conductor
What is current?
An apparatus that changes direct current to alternating current is a(n
What is an inverter?
A switch that automatically interrupts or shuts off an electric current at the first indication of an overload is a(n
What is circuit breaker?
Which light rays are blocked by the ozone layer?
What are UVC rays?
Remove lint from clothes dryers before each load to reduce the chance of ____
What is fire?
You should disconnect an appliance by pulling on the _____
What is plug?
The term current refers to a rapid and interrupted current, flowing first in one direction and then in the opposite direction.
What is alternating?
Grounding completes a(n)________ and carries the current safely away. p
electric circuit
When using________ current, the active electrode is the electrode used on the area to be treated
What is Galvanic?
The electricity in your house is measured in_______ per hour.
What is kilowatts?
__________ is the process that introduces water-soluble products into the skin.
What is Iontophoresis?
Electric wires can be covered with a material that does not transmit electricity, such as rubber or plastic coating. This material is known as a(n)
What is an insulator?
An appliance rated at 12 amps must have a cord that is______ as thick as one rated at 6 amps; otherwise, the cord might overheat and start a fire.
What is twice?
Direct current is produced by________ means.
What is chemical?
What light is known as cold light or actinic light?
What is ultraviolet?
A(n)_____________ is designed to detect currents of few milliamperes and trip a breaker at the receptacle or at the breaker panel to remove shock hazard.
What is GFI?